Vitamin K slowed the development of insulin resistance in elderly men in a study of 355 non-diabetic men and women ages 60 to 80 who completed a three-year clinical trial at the Jean Mayer Human Nutrition Research Center on Aging at Tufts University (USDA HNRCA). “Men who received vitamin K supplementation had less progression in their insulin resistance by the end of the clinical trial,” said Sarah Booth, senior author and director of the Vitamin K Laboratory at the USDA HNRCA.

With up to half of a person’s body mass consisting of skeletal muscle, chronic inflammation of those muscles – which include those found in the limbs – can result in significant physical impairment. According to University of Illinois

Nicotinamide (VitB3), a vitamin found in common foods like meats, nuts, grains and cereals, may provide the next advance in skin cancer prevention, according to new research from the University of Sydney. Presenting the results of a trial to the Clinical Oncological Society of Australia’s Annual Scientific Meeting today (19 Nov), Associate Professor Diona Damian said tests had shown the vitamin prevented damage from ultraviolet (UV) radiation by protecting the immune system.

Researchers from the Peninsula Medical School, the University of Cambridge and the University of Michigan, have for the first time identified a relationship between Vitamin D, the “sunshine vitamin”, and cognitive impairment in a large-scale study of older people. The importance of these findings lies in the connection between cognitive function and dementia: people who have impaired cognitive function are more likely to develop dementia.

Vitamin D is significantly associated with muscle power and force in adolescent girls, according to a new study accepted for publication in The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM). Although vitamin D is naturally produced in the body through exposure to direct sunlight, vitamin D deficiency has become widely common in the United States.

HealthDay – THURSDAY, Feb. 5 (HealthDay News) — A direct interaction between
vitamin D and a common genetic variant may affect a person#39;s risk of
multiple sclerosis, according to British and Canadian researchers who also
said that vitamin D deficiency while in the womb and early in life may
increase the risk of MS later in life.

Vitamin D may be an important way to arm the immune system against disorders like the common cold, report investigators from the University of Colorado Denver (UC Denver) School of Medicine, Massachusetts General Hospital (MGH) and Children’s Hospital Boston.